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Finding the Fourth Proportional to 492,049.40, 738,246.90 and 211,652.60

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Solution

The fourth proportional to 492,049.40, 738,246.90 and 211,652.60 is: 317,553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,049.40 : 738,246.90 = 211,652.60 : x
  2. Step 2: Convert to fraction form
    492,049.40/738,246.90 = 211,652.60/x
  3. Step 3: Cross multiply
    492,049.40x = 738,246.90 × 211,652.60
  4. Step 4: Simplify right side
    492,049.40x = 156,251,875,826.94
  5. Step 5: Solve for x
    x = 156,251,875,826.94/492,049.40
  6. Step 6: Final answer
    x = 317,553.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.